#pragma once

#ifndef DS2482_HAL_H
#define DS2482_HAL_H
#include "stm32f3xx_hal.h"

#define DS2482_I2C_ADDR 0x30 // TODO: change to actual address

#define DS2482_CMD_RESET         0xF0
#define DS2482_CMD_SET_READ_PTR  0xE1
#define DS2482_CMD_WRITE_CONFIG  0xD2
#define DS2482_CMD_1W_RESET      0xB4
#define DS2482_CMD_1W_SINGLE_BIT 0x87
#define DS2482_CMD_1W_WRITE_BYTE 0xA5
#define DS2482_CMD_1W_READ_BYTE  0x96
#define DS2482_CMD_1W_TRIPLET    0x78

#define DS2482_STATUS 0xF0
#define DS2482_READ_DATA 0xE1
#define DS2482_CONFIG 0xC3

#define DS2482_CONFIG_APU 1 << 0
#define DS2482_CONFIG_SPU 1 << 2
#define DS2482_CONFIG_1WS 1 << 3

#define DS2482_TIMEOUT_1W 100
#define DS2482_TIMEOUT_I2C 100

typedef struct {
    uint8_t BUSY : 1;
    uint8_t PPD : 1;
    uint8_t SHORT : 1;
    uint8_t LL : 1;
    uint8_t RST : 1;
    uint8_t SBR : 1;
    uint8_t TSB : 1;
    uint8_t DIR : 1;
} DS2482_Status;

HAL_StatusTypeDef ds2482_init(I2C_HandleTypeDef* handle);
HAL_StatusTypeDef ds2482_reset();
HAL_StatusTypeDef ds2482_write_config(uint8_t config);
HAL_StatusTypeDef ds2482_set_read_ptr(uint8_t read_ptr);
HAL_StatusTypeDef ds2482_1w_reset(bool* presence);
HAL_StatusTypeDef ds2482_1w_write_byte(uint8_t byte);
HAL_StatusTypeDef ds2482_1w_read_byte(uint8_t* byte);
HAL_StatusTypeDef ds2482_1w_triplet(uint8_t dir);

HAL_StatusTypeDef ds2482_1w_search(uint16_t max_devices, uint64_t devices[static max_devices]);
HAL_StatusTypeDef ds2482_1w_verify_device(uint64_t device, bool* present);

#endif // DS2482_HAL_H